Procedia Structural Integrity最新文献_第3页

Molecular dynamic simulation of the temperature effect on strength of carbyne-graphene nanoelements 温度对碳烯纳米元件强度影响的分子动力学模拟

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.06.021

Kotrechko Sergiy , Ovsjannikov Olexander , Barvinko Mykhailo , Stetsenko Nataliya

{"title":"Molecular dynamic simulation of the temperature effect on strength of carbyne-graphene nanoelements","authors":"Kotrechko Sergiy , Ovsjannikov Olexander , Barvinko Mykhailo , Stetsenko Nataliya","doi":"10.1016/j.prostr.2025.06.021","DOIUrl":"10.1016/j.prostr.2025.06.021","url":null,"abstract":"<div><div>The results of study of the temperature effect on strength of carbyne-graphene nanoelement (CGN) over a wide temperature range using the molecular dynamics technique are presented. The investigated CGN consisted of two graphene sheets connected by a ten-atom carbyne chain. It was ascertained that at temperatures lower than 1000 K, the average value of CGN strength decreases monotonically with increasing temperature according to a nearly linear dependence, and is accompanied by a scatter of strength values. This scatter increases as the temperature grows. It is shown that these regularities are due to the fluctuation-induced mechanism of the contact bonds breaking in carbene-graphene nanoelement. For the first time, it was found the phenomenon of transition from the instability of carbyne-graphene nanoelements due to the contact bond breaking to the instability, as a result of the fluctuation-induced formation of a Stone-Wales-like defect with the subsequent pulling out of the chain from the graphene sheet. This phenomenon is observed at temperatures higher than 1000 K. The obtained results may be used both for substantiating the working temperatures of CGN-based straintronics, and in the technologies of carbyne chains production.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"68 ","pages":"Pages 47-52"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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On analytical model of interface crack in bonding quasi-brittle material between distinct elastic media 不同弹性介质粘结准脆性材料界面裂纹的解析模型

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.06.022

M. Dudyk , A. Kaminsky , Yu. Reshitnyk , Yu. Chornoivan

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Analysis of Cavitation in Human Iliac Arterial Tissue 人髂动脉组织空化分析

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.06.043

Jaynandan Kumar , Anshul Faye

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Development of a new technological scheme to produce NiTi seamless tubes 开发一种生产镍钛无缝管的新工艺方案

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.07.005

Roman Karelin , Victor Kimarov , Vladimir Cherkasov , Vladimir Andreev , Vladimir Yusupov

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Understanding the application of Honeycomb sandwich panel on Leisure Boat Hulls: A Review of Impact and Bending damage 了解蜂窝夹芯板在休闲船体上的应用：冲击和弯曲损伤研究综述

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.125

Muhammad Zainnal Mutaqin , Suryanto Suryanto , Aditya Rio Prabowo , Seung Jun Baek , Martin Jurkovič , Didik Djoko Susilo , Purwadi Joko Widodo

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A Neutrosophic TOPSIS Framework for multi-criteria selection of Functionally Graded Materials 功能梯度材料多标准选择的中性TOPSIS框架

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.133

Ruhit Bardhan , Dharmik Chauhan , Manoj Sahni

{"title":"A Neutrosophic TOPSIS Framework for multi-criteria selection of Functionally Graded Materials","authors":"Ruhit Bardhan , Dharmik Chauhan , Manoj Sahni","doi":"10.1016/j.prostr.2025.08.133","DOIUrl":"10.1016/j.prostr.2025.08.133","url":null,"abstract":"<div><div>This research introduces a novel approach for the selection of Functionally Graded Materials (FGMs) using a modified TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) method within a neutrosophic framework. FGMs represent an advanced class of composite materials with gradually varying properties across their dimensions, making their selection a complex multi-criteria decision-making problem. The neutrosophic set theory addresses uncertainty, imprecision, and indeterminacy inherent in expert evaluations and technical specifications. Our framework incorporates truth, indeterminacy, and falsity membership functions to represent decision parameters comprehensively. The methodology is validated through a case study involving the selection of FGMs for high-temperature aerospace applications, considering criteria such as thermal resistance, mechanical properties, manufacturing complexity, and cost-effectiveness. Results demonstrate that the proposed neutrosophic TOPSIS framework offers improved discrimination power and robustness compared to conventional TOPSIS and fuzzy TOPSIS methods. Sensitivity analysis confirms the stability of the ranking outcomes under varying criteria weights. This approach provides materials engineers and designers with a reliable decision support tool for selecting optimal FGM compositions tailored to specific application requirements.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"72 ","pages":"Pages 507-519"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Numerical analysis of tensile behaviour of Ti-13Nb-13Zr alloy after anodic oxidation Ti-13Nb-13Zr合金阳极氧化后拉伸性能的数值分析

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.092

Dragana Mihajlović , Bojan Međo , Nenad Gubeljak , Ivana Cvijović-Alagić , Veljko Đokić , Marko Rakin

{"title":"Numerical analysis of tensile behaviour of Ti-13Nb-13Zr alloy after anodic oxidation","authors":"Dragana Mihajlović , Bojan Međo , Nenad Gubeljak , Ivana Cvijović-Alagić , Veljko Đokić , Marko Rakin","doi":"10.1016/j.prostr.2025.08.092","DOIUrl":"10.1016/j.prostr.2025.08.092","url":null,"abstract":"<div><div>The surface of coarse-grained Ti-13Nb-13Zr (CG TNZ) alloy was modified using the anodic oxidation. In order to obtained nanostructured oxide layer, as electrolyte in surface modification process 1M H<sub>3</sub>PO<sub>4</sub> + NaF was used, while anodizing time was 90 minutes. The modified surface morphology was analyzed using the field emission scanning electron microscopy (FE-SEM)). It was realized that anodic oxidation led to the creation of the oxide layer consisted of nanotubes. Tensile characteristics of the CG TNZ alloy, before and after anodic oxidation, were determined by tensile testing. Tensile testing was performed using Micro Tensile Specimens (MTS) with a rectangular cross-section. The anodic oxidation led to a decrease of tensile characteristics of the CG TNZ alloy. In order to better understand tensile behaviour of the CG TNZ alloy after anodic oxidation, numerical analysis was done. The 3D numerical model of MTS, which simulated the tensile test, was made in Abaqus software package. Numerical results were obtained using the complete Gurson model (CGM), which is micromechanical model used for the ductile fracture of metallic materials. The parameter that quantifies the damage in the material, that is, the volume fraction of voids or porosity, is varied. So the value of the damage parameter, the initial void volume fraction, <em>f<sub>0</sub></em>, was 0.01 and 0.005. In addition to the elongation of the MTS, the reduction of the cross-sectional thickness at the neck of MTS was also considered. Results showed that CGM for the initial value of the damage parameter 0.005 predicts the failure of the MTS at the corresponding value of thickness reduction.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"72 ","pages":"Pages 195-202"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Polymer characteristics and additive effects on fire resistance in glow-wire test performance: Part II – Deployed material and regulation 在灼热丝测试性能中聚合物特性和添加剂对耐火性能的影响：第2部分-展开材料和规范

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.117

Anandito Adam Pratama , Aditya Rio Prabowo , Teguh Muttaqie , Ihsan Supono , Nurul Muhayat , Eko Prasetya Budiana , Hammar Ilham Akbar , Iput Kasiyanto , Qudsiyyatul Lailiyah

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Variation of Shear Force in RC internal Beam-Column Connection from concentrated Moments on a frame Beam 框架梁集中弯矩作用下RC内梁柱连接剪力的变化

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.099

Albena Doicheva

{"title":"Variation of Shear Force in RC internal Beam-Column Connection from concentrated Moments on a frame Beam","authors":"Albena Doicheva","doi":"10.1016/j.prostr.2025.08.099","DOIUrl":"10.1016/j.prostr.2025.08.099","url":null,"abstract":"<div><div>One of the most vulnerable elements from frame structures under seismic effects is the beam-column connection. Damage occurs as a result of the shear force in the connection. The definition of shear force was given by Hanson and Connor in 1967. It leads to the freedom of researchers to search for those parameters that influence the magnitude of the shear force. Research in different countries has not led to the establishment of a uniform procedure in the codes. One reason is the difficulty in calculating the forces that are transmitted from the beams to the columns. In the current Eurocode 2, the shear force is defined capacitively. This paper considers a mathematical model of the beam which allows all dimensions of the beam in height, as well as the characteristics of the composite beam materials to be taken into account. In the present study, a beam of a frame structure loaded with concentrated moments is considered. A solution is performed and the equations for the support reactions along the lateral edge in height of the beam are derived. Solutions for symmetric cross sections are shown. Numerical results for selected beam sizes are demonstrated. They are compared with the results of formulas recommended in the literature. Comparison of the new shear force with that determined by the approximate method recommended in the literature shows a difference of 27%. A comparison was also made with the shear force determined according to Eurocode 2. The result showed a difference of 22%.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"72 ","pages":"Pages 243-251"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Žeželj’s bridge and critical load due building long arch Žeželj的桥梁和建筑长拱的临界荷载

Procedia Structural Integrity Pub Date : 2025-01-01 DOI: 10.1016/j.prostr.2025.08.104

Boris Folić , Miloš Čokić , Željko Žugić

{"title":"Žeželj’s bridge and critical load due building long arch","authors":"Boris Folić , Miloš Čokić , Željko Žugić","doi":"10.1016/j.prostr.2025.08.104","DOIUrl":"10.1016/j.prostr.2025.08.104","url":null,"abstract":"<div><div>This paper shows the influence of critical loads on the long-span arch of Žeželj bridge (ŽB) in Novi Sad. The construction of scaffolding for large-span concrete arches before the Žeželj‘s Bridge in Novi Sad was very expensive. That is why Žeželj envisioned the construction of RC arches in three longitudinal parts. But due to the rheological properties of concrete, primarily due to the influence of creep, and to a lesser extent shrinkage, the arches were temporarily interrupted at the top, i.e. dilation was left at the top of the arches. Since the arches were also longitudinally segmented in stages, the scaffolding was designed for only about 40% of the load, which significantly reduced the cost of the scaffolding of the large arch.</div><div>Namely, originally the arch was smaller, but due to the conditions of the Danube Commission regarding the width of the free waterway, the span of the large arch was increased to 211 m, whereupon a precast RC scaffold was constructed (for the first time in the world), using the cantilever method. According to Boško Petrović’s lectures (held during the period of 1991-2004 in NS): the critical moment during the construction of the bridge was the phase of introducing pressure forces into the semi-arches and specifically the moment of lifting the structure from the formwork-scaffolding.</div><div>The analysis of the influence in the arches during the construction phases was conducted in the Tower Radimpex. It is assumed that the old calculation was done in two ways, via the chain polygon of forces and tabularly by dividing one half of the arc into 10 to 20 parts. Because of symmetry, it was enough to analyse half of the arch.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"72 ","pages":"Pages 278-285"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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